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National Chiao Tung University Stella Kuei Ann Wen 2014/10/11 Page 12 4.1 ACTUAL SENSITIVITY LEVEL The actual sensitivity level is defined as the input level for which a raw bit error rate (BER) of 0.1% is met. The requirement for a Bluetooth receiver is an actual sensitivity level of -70 dBm or better. In order to measure the bit error rate performance; the equipment must have a loop back facility as specified in Test Mode Specification.

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National Chiao Tung University Stella Kuei Ann Wen 2014/10/11 Page 15 4.3 OUT-OF-BAND BLOCKING The out of band blocking is measured with the wanted signal 3 dB over the reference sensitivity level. The interfering signal shall be a continuous wave signal. The BER shall be  0.1 %. The Out of band blocking requirements:

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National Chiao Tung University Stella Kuei Ann Wen 2014/10/11 Page 17 4.4 INTERMODULATION CHARACTERISTICS The reference sensitivity performance, BER = 0.1%, shall be met under the following conditions: 1. The wanted signal at frequency f 0 with a power level 6 dB over the reference sensitivity level. 2. A static sine wave signal at f 1 with a power level of -39 dBm. 3. A Bluetooth modulated signal at f 2 with a power level of - 39dBm. Such that f 0 =2f 1 -f 2 and  f 2 -f 1  =n*1 MHz where n can be 3, 4, or 5. The system must fulfil one of the three alternatives.

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National Chiao Tung University Stella Kuei Ann Wen 2014/10/11 Page 83 14. Bluetooth Security In order to accommodate for different types of applications, four types of link keys have been defined: the combination key K AB the unit key K A the temporary key K master the initialisation key K init